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Windows 7: Blue screen due BCCode: a and driver fault ntoskrnl.exe


15 Apr 2010   #1

wndows 7 64 bit
 
 
Blue screen due BCCode: a and driver fault ntoskrnl.exe

Hi,
My computer is crashing once a day and due to same error code.
Typical error log looks like:

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Extra information about the problem
BCCode: a
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF80002A817B6
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

I have windows 7 ultimate 64 bit.

When I viewed the crash dumps I see that fault is due to ntoskrnl.exe every time.

Could you please tell me what may be the reason for same.

I am attaching my dumps for reference.

Thanks for your help.

Sachin


My System SpecsSystem Spec
.

15 Apr 2010   #2

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by sjmittal View Post
Hi,
My computer is crashing once a day and due to same error code.
Typical error log looks like:

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Extra information about the problem
BCCode: a
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF80002A817B6
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

I have windows 7 ultimate 64 bit.

When I viewed the crash dumps I see that fault is due to ntoskrnl.exe every time.

Could you please tell me what may be the reason for same.

I am attaching my dumps for reference.

Thanks for your help.

Sachin
This crash was probably caused by vfilter.sys which is part of your VPN client software. I would remove it to test. BTW for future reference could you zip all the DMP files into one zip file?

Thanks
Ken
Code:
Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\K\Desktop\040810-19796-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*F:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7600 MP (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Machine Name:
Kernel base = 0xfffff800`02a17000 PsLoadedModuleList = 0xfffff800`02c54e50
Debug session time: Thu Apr  8 09:58:27.539 2010 (GMT-4)
System Uptime: 0 days 8:32:11.632
Loading Kernel Symbols
...............................................................
................................................................
...........................
Loading User Symbols
Loading unloaded module list
............
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck A, {0, 2, 0, fffff80002a8d0b6}

Unable to load image \SystemRoot\system32\DRIVERS\vfilter.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for vfilter.sys
*** ERROR: Module load completed but symbols could not be loaded for vfilter.sys
Probably caused by : vfilter.sys ( vfilter+29a6 )

Followup: MachineOwner
---------

4: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

IRQL_NOT_LESS_OR_EQUAL (a)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If a kernel debugger is available get the stack backtrace.
Arguments:
Arg1: 0000000000000000, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, bitfield :
    bit 0 : value 0 = read operation, 1 = write operation
    bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: fffff80002a8d0b6, address which referenced memory

Debugging Details:
------------------


READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80002cbf0e0
 0000000000000000 

CURRENT_IRQL:  2

FAULTING_IP: 
nt!KeSetEvent+226
fffff800`02a8d0b6 488b09          mov     rcx,qword ptr [rcx]

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0xA

PROCESS_NAME:  svchost.exe

TRAP_FRAME:  fffff8800abded70 -- (.trap 0xfffff8800abded70)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffffa80062187f8 rbx=0000000000000000 rcx=0000000000000000
rdx=0000000000000001 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002a8d0b6 rsp=fffff8800abdef00 rbp=0000000000000002
 r8=0000000000000000  r9=0000000000000000 r10=0000000000000000
r11=0000000000000002 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl nz ac pe cy
nt!KeSetEvent+0x226:
fffff800`02a8d0b6 488b09          mov     rcx,qword ptr [rcx] ds:0002:00000000`00000000=????????????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002a88469 to fffff80002a88f00

STACK_TEXT:  
fffff880`0abdec28 fffff800`02a88469 : 00000000`0000000a 00000000`00000000 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`0abdec30 fffff800`02a870e0 : fffff880`0abdf331 fffffa80`062187f0 00000000`00000000 00000000`00000000 : nt!KiBugCheckDispatch+0x69
fffff880`0abded70 fffff800`02a8d0b6 : fffff880`0abdef70 fffff880`02cb9b0e 00000000`0000004c fffff880`0abdeff0 : nt!KiPageFault+0x260
fffff880`0abdef00 fffff880`02cb99a6 : fffffa80`00000000 00000000`00000000 00000000`00000000 fffffa80`062187e0 : nt!KeSetEvent+0x226
fffff880`0abdef70 fffffa80`00000000 : 00000000`00000000 00000000`00000000 fffffa80`062187e0 00000000`00000000 : vfilter+0x29a6
fffff880`0abdef78 00000000`00000000 : 00000000`00000000 fffffa80`062187e0 00000000`00000000 fffff880`02cb942b : 0xfffffa80`00000000


STACK_COMMAND:  kb

FOLLOWUP_IP: 
vfilter+29a6
fffff880`02cb99a6 ??              ???

SYMBOL_STACK_INDEX:  4

SYMBOL_NAME:  vfilter+29a6

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: vfilter

IMAGE_NAME:  vfilter.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4b048bff

FAILURE_BUCKET_ID:  X64_0xA_vfilter+29a6

BUCKET_ID:  X64_0xA_vfilter+29a6

Followup: MachineOwner
---------

Ken
My System SpecsSystem Spec
13 Aug 2010   #3

Windows 7 Home Premium
 
 

I have almost the same codes, can someone help me please with identification error from memory dump, couple instances, but I think they are all the same problem.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 2057

Additional information about the problem:
BCCode: a
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF8000428E8B6
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

I have VPN client that could cause this, but I haven't had this error on my previous box with Windows 7 x64 installed.
My System SpecsSystem Spec
.


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 Blue screen due BCCode: a and driver fault ntoskrnl.exe




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